The title compound, [Zn(C7H4NO4)(2) (C10H14N2O)(2) (H2O)(2)], crystallizes
as centrosymmetric mononuclear molecules with octahedrally coordinated zinc
, all pairs of equivalent ligands being mutually trans. Intramolecular hydr
ogen bonding links each aqua ligand with an uncoordinated carboxylate O ato
m, and intermolecular hydrogen bonding between aqua ligands and the carbony
l O atoms of N,N-diethylnicotinamide ligands link the molecules together in
to chains.